Bibin A Chundatt created YARN-9508:
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Summary: YarnConfiguration areNodeLabel enabled is costly in
allocation flow
Key: YARN-9508
URL: https://issues.apache.org/jira/browse/YARN-9508
Project: Hadoop YARN
Issue Type: Bug
Reporter: Bibin A Chundatt
For every allocate request locking can be avoided. Improving performance
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"pool-6-thread-300" #624 prio=5 os_prio=0 tid=0x00007f2f91152800 nid=0x8ec5
waiting for monitor entry [0x00007f1ec6a8d000]
java.lang.Thread.State: BLOCKED (on object monitor)
at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2841)
- waiting to lock <0x00007f1f8107c748> (a
org.apache.hadoop.yarn.conf.YarnConfiguration)
at org.apache.hadoop.conf.Configuration.get(Configuration.java:1214)
at org.apache.hadoop.conf.Configuration.getTrimmed(Configuration.java:1268)
at org.apache.hadoop.conf.Configuration.getBoolean(Configuration.java:1674)
at
org.apache.hadoop.yarn.conf.YarnConfiguration.areNodeLabelsEnabled(YarnConfiguration.java:3646)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerUtils.normalizeAndValidateRequest(SchedulerUtils.java:234)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerUtils.normalizeAndvalidateRequest(SchedulerUtils.java:274)
at
org.apache.hadoop.yarn.server.resourcemanager.RMServerUtils.normalizeAndValidateRequests(RMServerUtils.java:261)
at
org.apache.hadoop.yarn.server.resourcemanager.DefaultAMSProcessor.allocate(DefaultAMSProcessor.java:242)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint.processor.DisabledPlacementProcessor.allocate(DisabledPlacementProcessor.java:75)
at
org.apache.hadoop.yarn.server.resourcemanager.AMSProcessingChain.allocate(AMSProcessingChain.java:92)
at
org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService.allocate(ApplicationMasterService.java:427)
- locked <0x00007f24dd3f9e40> (a
org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService$AllocateResponseLock)
at
org.apache.hadoop.yarn.sls.appmaster.MRAMSimulator$1.run(MRAMSimulator.java:352)
at
org.apache.hadoop.yarn.sls.appmaster.MRAMSimulator$1.run(MRAMSimulator.java:349)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
at
org.apache.hadoop.yarn.sls.appmaster.MRAMSimulator.sendContainerRequest(MRAMSimulator.java:348)
at
org.apache.hadoop.yarn.sls.appmaster.AMSimulator.middleStep(AMSimulator.java:212)
at org.apache.hadoop.yarn.sls.scheduler.TaskRunner$Task.run(TaskRunner.java:94)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
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